From: "edee em" 
Newsgroups: misc.consumers.house alt.home.repair
Subject: Re: High Efficiency Furnace vent question
Date: Fri, 6 May 2005 07:00:47 -0400

That's a great question!  I have the same and never thought it might be 
covered.  I'll be watching for responses to this one...


"Tim"  wrote in message news:427AE86A.F8EAF09F@spam.free...
> My high efficiency furnace was installed last fall.  It vents via PVC
> pipes and a cone vent through the wall.  Now that the heating season is
> coming to a close, should the intake and exhaust pipes be protected from
> insects, etc for the summer.?   Even a dryer vent has a flapper to keep
> everything out, but the furnace pipes don't have any such protection.
> I'd hate to have hornets set up shop and build a nest inside the pvc
> pipes or even the furnace.
>